Hydro-Hot™ Motor Coach Heating System Owner's Manual 06/02
Hydro-Hot™ Motor Coach Heating System Owner's Manual 06/02
SECTION 6:
ELECTRONIC CONTROLLER DIAGNOSTICS
Overload Fault:
This indicator light will
illuminate RED
under the following conditions:
1. The Hydro-Hot is off due to an electrical overload condition (short) in the
main VDC power supply circuit.
2. The Hydro-Hot is off due to a combination of high electrical VDC power
loads and a high surface temperature of the Electronic Controller.
The Hydro-Hot will automatically restart once the electrical overload (short)
and/or high heat condition is corrected.
Heating Zones Status:
These five indicator lights (separately) illuminate GREEN whenever a Zone
Thermostat calls-for-heat. The GREEN light also indicates that DC power is
being supplied to the interior Zone Heating Fans. If any of the five indicator
lights are illuminating RED this indicates an electrical overload condition
(short) in that particular heating zone.
NOTE: A short in either the Zone Thermostat or a particular Zone
Heating Fan circuit can cause the indicator light to illuminate RED.
Page 6-2
SECTION 6:
ELECTRONIC CONTROLLER DIAGNOSTICS
Circulation Pumps #1, #2, and the Stir Pump:
These indicator lights (separately) illuminate GREEN whenever a Zone
Circulation Pump is operating. If any of the lights are illuminating RED this
indicates an electrical overload condition (short) in that particular pump’s
electrical circuit.
NOTES:
1. The Circulation Pumps (separately) are activated
whenever a Zone Thermostat calls for heat.
2. The Stir Pump is activated whenever domestic hot
water is being used on a continuous basis (i.e. during showers).
Page 6-3
